The Vintage Nord Mende Model 208 Stereo Headphones offer a unique listening experience with their 20.23 kHz frequency range and 4.16 ohms impedance matching. The double earpieces feature leathery soft ear pads and head cushions for comfort, and the sleek black color adds a touch of retro style. The 10 feet coiled phone cord with stereo phone plug ensures connectivity, while the stereo monaural slide switch allows for mono listening. With a maximum input of .05 watts per channel and sensitivity of 110 db at 1000 Hz with LMW, these headphones are perfect for private listening pleasure. Made in Taiwan, these over-the-ear headphones also feature slide volume controls for each channel and tone controls. If a problem let me know right away! Please ask questions before bidding! No charge shipping is USA only! if appreciable eBay will collect sales tax! Thank You. God Bless